body {
    background: url(../static/images/loginBk.jpg) no-repeat center center;
    background-size: 100%;
}

.theLoginWindow {
    width: 350px;
    height: 400px;
    background-color: #e4e7e780;
    margin: 160px auto;
    font-size: 16px;
    text-align: center;
    overflow: hidden;

    h4 {
        margin-top: 30px;
        font-size: 22px;
    }

    input {
        font-size: 18px;
        margin-top: 20px;
        width: 300px;
        height: 40px;
    }

    .loginBtn {
        background-color: #518dfc;
        border-radius: 5px;
        border: none;
        margin-top: 50px;
        cursor: pointer;
    }

    p {
        height:20px;
        margin-top: 10px;
        color: red;
        font-size: 18px;
    }
}